There are total 18 hours or 1080 minutes from 7am to 1am. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 4PM to 10AM | 6AM to 9AM | 3PM to 1PM |
| 7PM to 6PM | 7PM to 4PM | 2AM to 4AM |
| 4AM to 7AM | 10AM to 12PM | 8PM to 11AM |
| 2AM to 3PM | 9AM to 12PM | 4AM to 1AM |
| 5PM to 10PM | 1PM to 5AM | 4PM to 7PM |
| 4AM to 6PM | 7AM to 5AM | 4AM to 9PM |
